Trolley-wheel retainer



' Aug. 23, 1927*.

H. G. wlmi-:R

TROLLEY WHEEL RETAINER Filed Aug. 3l, 1926 Patented Aug. 23, `1927.

HERBERT G. WINTER, OF EITTSBURGH, PENNSYLVANIA.

TROLLEY-WHEEL RETAINER.

Application led August 31, 1926. Serial No. 132,834.

This invention relates to improvements in trolley Wheels, an object being to provide an attachment to a portion of the Wheel fork arranged to form a guard around the trolley f Wire and thus keep the Wheel in place While running.

Other objects and advantages appear. 1n the following specification, reference being had to the accompanying drawing, in

l Which:-

Figure l is a side elevation ot a trolley wheel and :trame illustrating the attachment in use, and

Figure 2 is an end elevation.

15 As indicated by the foregoing brief statement ot the invention it is the purpose ot the attachment to retain the trolley Wheel l in contact with the Wire 2. It is a common eX- perience to those having to do With apparaf tus deriving current from overhead Wires by means ot trolleys, to have the Wheel jump to Wire. preventing such jumping.

To this end provision is made of a pair il.` of rollers 3 and a revolubly mounted upon headed pins or screws 5 Which are suitably affixed to the upstanding arms ot a pair of bell-cranks G and 7. The rollers have relatively large disk-like flanges 8 which, When 3o the attachment is operative (F ig. 2), act as guards above the Wire and serve as checks to the ready escape of the Wheel from the Wire.

Screws 9 or other suitable means provide pivotal mountings for the bell-cranks upon 53 a base l0 either formed integrally with or applied to the fork or clevis ll. A stout spring l2 (Fig. 2) has the ends attached to studs 13 upon the bell-cranks, pulling the bell-cranks against stops 14 and limiting' the S closing movement of the rollers and guard flanges around the Wire. The spring l2 is of sucient strength to prevent yielding of the bell-cranks under any ordinary pressure The attachment forms a guardV of the lianges 8 against the Wire as When the trolley is in operation.

Holes in the ends or the freearms of the bell-cranks permit the vattachment of the trolley rope l which is suitably divided to reach both bell-cranks. A pull upon the rope will rock the l'iell-cranks to displace the guard rollers and flanges from range of the Wire 2 and at the same time pull the trolley fork down to remove the Wheel from the Wire.

`While the construction and arrangement of the trolley Wheel retainer is that of a generaly preferred form, obviously modifications and changes may be made Without departing from the spirit of the invention or scope of the claim.

I claim cidental disengagement of the Wheel from the Wire, the'bloclr including stop means against which the vertical arms are held by the spring, the horizontal arms of the bell cranks extending laterally beyond the block and being formed with means engageable with an operating rope, a trolley pole rope including branches engaged with said horizontal arms and acting through the arms to spread the rollers against the action ot thespring and to transmit a downward pull to the trolley Wheel through the intermediacy o1 the spring when it is desired to disengage the Wheel.

HERBERT G. WINTER. 

